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unit DataAccess; |
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interface |
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uses TypeDefs, Classes, StrUtils, SysUtils; |
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uses TypeDefs, Classes, StrUtils, SysUtils, _MetaManager; |
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type |
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TDataAccess = class |
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FDataOS: TDataOS; |
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FLevelNumber: Integer; |
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FChangeRights: TChangeRights; |
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FMeta: TMetaManager; |
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procedure SetDataOS(DataOS: TDataOS); |
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public |
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property ConnectionID: Integer read FConnectionID; |
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property DataOS: TDataOS read FDataOS write SetDataOS; |
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property LevelNumber: Integer read FLevelNumber; |
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property ChangeRights: TChangeRights read FChangeRights; |
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property MetaData: TMetaManager read FMeta; |
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constructor Create(FileName: String; ConnectionID: Integer; var Msg: TStatusMessages); virtual; abstract; |
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procedure Close; virtual; abstract; |
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procedure UpdateDatFilePart(FileID, Offset, Size: Integer; Src: TStream); overload; virtual; abstract; |
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procedure UpdateDatFilePart(FileID, Offset, Size: Integer; Src: Pointer); overload; |
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function GetDatLinks(FileID: Integer): TDatLinkList; virtual; abstract; |
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function GetDatLink(FileID, DatOffset: Integer): TDatLink; virtual; abstract; |
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function GetRawList(FileID: Integer): TRawDataList; virtual; abstract; |
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function GetRawInfo(FileID, DatOffset: Integer): TRawDataInfo; virtual; abstract; |
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function AppendRawFile(LocSep: Boolean; Src: TStream): Integer; overload; virtual; |
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function AppendRawFile(LocSep: Boolean; Src: TByteData): Integer; overload; |
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function AppendRawFile(LocSep: Boolean; Size: Integer; Src: Pointer): Integer; overload; |
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// function AppendRawFile(LocSep: Boolean; Size: Integer; Src: Pointer): Integer; overload; |
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published |
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end; |
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data := TMemoryStream.Create; |
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data.Write(Src[0], Length(Src)); |
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data.Seek(0, soFromBeginning); |
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AppendRawFile(LocSep, data); |
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Result := AppendRawFile(LocSep, data); |
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data.Free; |
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end; |
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{ |
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function TDataAccess.AppendRawFile(LocSep: Boolean; Size: Integer; Src: Pointer): Integer; |
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var |
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data: TStream; |
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data := TMemoryStream.Create; |
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data.Write(Src^, Size); |
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data.Seek(0, soFromBeginning); |
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AppendRawFile(LocSep, data); |
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Result := AppendRawFile(LocSep, data); |
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data.Free; |
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end; |
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} |
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procedure TDataAccess.SetDataOS(DataOS: TDataOS); |